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The Overview on Failure Mechanism and Strengthening Measure of Mechanical Properties for Recycled Concrete
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[1]SHAO Yunhong,PANG Yafeng,ZHENG Yuanxun,et al.The Overview on Failure Mechanism and Strengthening Measure of Mechanical Properties for Recycled Concrete[J].Journal of Zhengzhou University (Engineering Science),2020,41(04):17-22.[doi:10.13705/j.issn.1671-6833.2020.04.005]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 41 Number of periods: 2020 04 Page number: 17-22 Column: Public date: 2020-08-12
Title:
The Overview on Failure Mechanism and Strengthening Measure of Mechanical Properties for Recycled Concrete
Author(s):
SHAO Yunhong1; 3; PANG Yafeng2; ZHENG Yuanxun3; KONG Weixing3
1.Zhejiang Institute of Communications,Hangzhou 311112,China;2.The Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China;3.School of Water Conservancy Science and Engineering,Zhengzhou University,Zhengzhou 450001,China
Keywords:
recycled concrete; failure mechanism; strengthening measures; mechanical properties
CLC:
-
DOI:
10.13705/j.issn.1671-6833.2020.04.005
Abstract:
The recycling of waste concrete was in line with Chinese basic national policy of green environmental protection and sustainable development.Therefore,It was one of the urgent problems to be solved to effectively improve the mechanics and road performance of recycled concrete based on the research of recycled concrete failure model,and expand its application in infrastructure construction.Combined with the latest domestic and foreign research status,this paper summarized the studis of the failure mechanism and failure mode of recycled concrete from the aspects of compressive strength,tensile splitting strength and elastic modulus.On this basis,the replacement rate of recycled aggregate,type of recycled aggregate,specimen forming method,admixture addition,and addition of steel slag,steel fiber,carbon fiber,fiber fabric and addition of mineral fillers such as fly ash or silica powder were analyzed to strength mechanical properties of recycled concrete.The results had an important guiding role in strengthening the research mechanism of waste concrete collapse and mechanical strengthening measures,and provided reference for further improving the recycling and widespread promotion of waste coagulation.
References:
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